Shape-memory alloys are used in everything from space exploration to dentistry -- but how could metal have a memory? Tune in as Dr. Ainissa G. Ramirez, Associate Professor of Mechanical Engineering & Materials Science at Yale, explains. www.seas.yale.edu

Imagine if you could power light bulbs with pencils. In this clip, Dr. Ainissa G. Ramirez, Associate Professor of Mechanical Engineering & Materials Science at Yale, describes graphene, and how it may revolutionize civilization. www.seas.yale.edu